VAV – Module NMV-D2M
N-S3.5 Operating steps
- Auto – Status: ‘Auto [reference signal w]’
Classic application: the NMV-D2M regulates to the applied 0/2...10 V
reference signal
Bus mode: NMV-D2M controls the adjusted V’min value. Note: In case
an additional sensor is connected (Bus mode only), the NMV-D2M follows
to the 0...10 V voltage value of the sensor input [w].
- Close – Status: ‘Damper closing’
Damper moving to the Closed position.
Setpoint display: --
- Open – Status: ‘Damper opening’
Damper moving to the Open position.
Setpoint display: ---
Actual value display: range 0...110% V’nom
- V’min – Status: ‘Operating step V’min active’
The NMV-D2M regulates the volume to the preset V’min value.
- V’mid – Status: ‘Operating step V’mid active’
The NMV-D2M regulates the volume to the preset V’mid value.
- V’max – Status: ‘Operating step V’max active ’
The NMV-D2M regulates the volume to the preset V’max value.
- V’nom – Status: ‘NMV-D2M regulating to V’nom’
The NMV-D2M regulates the volume to the preset V’nom value.
- Variable – Status: ‘Variable operation V’min…V’max’
Issue of the setpoint for volumetric flow, as an absolute
value (e.g. in m
3
/h) or as a relative value (in %).
Range: operating volumetric flow setting V’min...V’max.
- Stop – Status: ‘Motor stop’
- Motor gets stopped (freezed’ at the actual position
- Actual flow gets displayed
N-S3.6 Reference / Actual value of damper position
Reference value: preset setpoint for volumetric flow
Setpoint display as [%] value and as absolute value in [e.g.: m
3
/h]
*)
The two fields serve as the input field when the ‘Variable’ mode of opera-
tion is active.
Actual value: current actual value of volumetric flow
Actual value display as [%] value and as absolute value in [e.g.: m
3
/h]
*)
Range: 0...110% V’nom
Damper position: actual position of the damper
Damper position display as [%] value and as absolute value in [°]
**)
*)
For absolute value display the V’nom value must be entered. The value is entered by the
manufacturer of the VAV / CAV box during the calibration procedure.
**)
After a successful adaption run the 0...100% display is replaced by the available damper con-
trol range.
Absolute display in degrees of angle (0...95°)
V'nom
V'mid
VAV / CAV operation
Close
[depends on
supply pressure]
V'max
Open
V'min
Volumet ric
flow [V'nom]
0 10010 20 30 40 50 60 70 80 90
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